Re: How much per camera???
"You can buy an one off bottom of the barrel Gopro for £150."
And that GoPro is mounted on a remote controlled gimbal for that money is it? Has optical zoom? How are you storing the data?
I've looked into some CCTV rigs for the site I work at, the cameras can be up to £300 (because they are on a gimbal to look around, can zoom, and have IR illumination to work in the dark), then there's a license cost per camera for the surveillance software (~£40 pa), plus the disk array the data is stored on. (£2k, plus annual maintenance for the disks)